{"title":"Pressure regulator valve by Bondgraph","authors":"Katsuya Suzuki , Ikuo Nakamura , J.U Thoma","doi":"10.1016/S0928-4869(99)00024-5","DOIUrl":null,"url":null,"abstract":"<div><p>The Bondgraph represents mechanical, hydraulic and electric components with their power flow in an unified manner and is used here for a three port regulator valve for pressure. It consists of a valve spool and a valve body or casing, and an electric solenoid. The valve assembly has three ports and two variable metering orifices, represented by modulated R-elements. They are the combination of a proportional and a quadratic characteristic, each by separate R-elements. One of them is in conductance causality, the other one in resistance causality and they are on a 1-junction. This gives an algebraic loop that can be broken by a first order element. Even with a closed port, there is some passage, or leakage in the valve due to clearance. The solenoid is non-linear. The whole is represented by a Bondgraph and simulated by the TUTSIM program, where real parameters are used. This leads the valve dynamics much quicker than solving differential equations</p></div>","PeriodicalId":101162,"journal":{"name":"Simulation Practice and Theory","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"1999-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0928-4869(99)00024-5","citationCount":"12","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Simulation Practice and Theory","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0928486999000245","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 12
Abstract
The Bondgraph represents mechanical, hydraulic and electric components with their power flow in an unified manner and is used here for a three port regulator valve for pressure. It consists of a valve spool and a valve body or casing, and an electric solenoid. The valve assembly has three ports and two variable metering orifices, represented by modulated R-elements. They are the combination of a proportional and a quadratic characteristic, each by separate R-elements. One of them is in conductance causality, the other one in resistance causality and they are on a 1-junction. This gives an algebraic loop that can be broken by a first order element. Even with a closed port, there is some passage, or leakage in the valve due to clearance. The solenoid is non-linear. The whole is represented by a Bondgraph and simulated by the TUTSIM program, where real parameters are used. This leads the valve dynamics much quicker than solving differential equations
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